CVE-2026-8960: Vulnerability in Mozilla Firefox
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
AI Analysis
Technical Summary
CVE-2026-8960 is a spoofing vulnerability affecting the WebExtensions component in Mozilla Firefox. Spoofing vulnerabilities can allow an attacker to deceive users or software by presenting false information or interfaces. Mozilla fixed this vulnerability in Firefox 151 as part of a broader security update addressing multiple issues. The advisory classifies the impact of this vulnerability as low, indicating limited potential harm. No CVSS score is provided. The vendor advisory is the authoritative source confirming the fix availability.
Potential Impact
The impact of CVE-2026-8960 is considered low according to the Mozilla advisory. Spoofing issues can potentially mislead users or software but do not necessarily lead to code execution or privilege escalation. There are no reports of active exploitation in the wild. The vulnerability was fixed in Firefox 151, mitigating any risk from this issue in updated versions.
Mitigation Recommendations
Mozilla fixed this vulnerability in Firefox 151. Users and administrators should update to Firefox 151 or later to remediate this issue. Since the vulnerability is fixed in an official release, no additional mitigation steps are required beyond applying the update.
CVE-2026-8960: Vulnerability in Mozilla Firefox
Description
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8960 is a spoofing vulnerability affecting the WebExtensions component in Mozilla Firefox. Spoofing vulnerabilities can allow an attacker to deceive users or software by presenting false information or interfaces. Mozilla fixed this vulnerability in Firefox 151 as part of a broader security update addressing multiple issues. The advisory classifies the impact of this vulnerability as low, indicating limited potential harm. No CVSS score is provided. The vendor advisory is the authoritative source confirming the fix availability.
Potential Impact
The impact of CVE-2026-8960 is considered low according to the Mozilla advisory. Spoofing issues can potentially mislead users or software but do not necessarily lead to code execution or privilege escalation. There are no reports of active exploitation in the wild. The vulnerability was fixed in Firefox 151, mitigating any risk from this issue in updated versions.
Mitigation Recommendations
Mozilla fixed this vulnerability in Firefox 151. Users and administrators should update to Firefox 151 or later to remediate this issue. Since the vulnerability is fixed in an official release, no additional mitigation steps are required beyond applying the update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-19T12:29:56.291Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-46/","vendor":"Mozilla"}]
Threat ID: 6a0c677bec166c07b0a993f4
Added to database: 5/19/2026, 1:36:59 PM
Last enriched: 5/19/2026, 1:54:32 PM
Last updated: 5/20/2026, 6:48:15 PM
Views: 9
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